Former state Attorney General and adviser for George W. Bush, Tom Rath, said the Republican presidential candidate has the right message, and that it's clear that voters are paying attention.

Rath calls Kasich optimistic and caring and said he feels it’s an approach that will work going forward.

“We have got to give everyone a sense that everyone is included that the mojo doesn't just apply to a few,” said Kasich.

Kasich said as president, he would prioritize balancing the budget and strengthening the military, which were ideas that spurred applause at an event in Derry on Wednesday.

“I think it’s time that a voice like that is heard in New Hampshire. New Hampshire gives you the chance to let your voice be hear and that’s why he understands New Hampshire is so important,” said Tom Rath, who will serve as Kasich's national adviser and New Hampshire co-chair.

Rath is joining former U.S. Sen. John Sununu in throwing support behind Kasich.

“To get an endorsement like that is a huge deal ‘cause he is highly respected. Tom Rath working with John Sununu -- it's a pretty powerful combination,” said Kasich.

Kasich has been gaining some momentum in recent weeks, with poll numbers improving.

“Polls, we go up, we go down, we go sideways. I don't really pay much attention to them. (It’s) just an indication something good is happening here,” said Kasich.

He said he is having a ball on the campaign, joking with people and trying to stay real. News 9 saw Kasich call a 92-year-old supporter who couldn’t make it to his event.

Rath’s endorsement is one of the most significant so far in this campaign cycle.

Kasich told reporters he got another big endorsement on Wednesday, but said he wouldn’t reveal who that was until next week.